Finding the Fourth Proportional to 393,717,421.40, 543,345,580.62 and 226,453,414.28
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Solution
The fourth proportional to 393,717,421.40, 543,345,580.62 and 226,453,414.28 is: 312,514,649.28
Step by Step Solution
- Step 1: Write the proportion equation
393,717,421.40 : 543,345,580.62 = 226,453,414.28 : x - Step 2: Convert to fraction form
393,717,421.40/543,345,580.62 = 226,453,414.28/x - Step 3: Cross multiply
393,717,421.40x = 543,345,580.62 × 226,453,414.28 - Step 4: Simplify right side
393,717,421.40x = 123,042,461,862,631,280 - Step 5: Solve for x
x = 123,042,461,862,631,280/393,717,421.40 - Step 6: Final answer
x = 312,514,649.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.